Question 1

What is the difference between bdxl discs and m-discs ?

Accepted Answer

Ah, this is fairly straightforward:"BDXL" refers to the Blu-ray specification for quad layer, 100GB discs. You can read about that here: https://en.wikipedia.org/wiki/Blu-ray_Disc_recordable#Version_4.0.E2.80.94RE_4.0.E2.80.94.28BDXL.29"M-Disc" refers to the actual technology employed in the recording layer. In this case, M-Disc capable discs must be written by M-Disc capable writers, but instead of changing the color of the disc's dye, or changing its phase, these M-Discs and burners actually engrave the data into the disc in a series of pits and lands. M-Discs also come in all typical sizes; 4.7GB DVDs, 25GB, 50GB & 100GB Blu-day recordables. You can read about this here: https://en.wikipedia.org/wiki/M-DISC

Question 2

Just bought a blu-ray m-disc drive. will the burned m-disc be readable by a standard dvd drive/player? thanks

Accepted Answer

I just burned several BDXL 100gb's. They are marked with Blu-Ray logo and open read etc fine with the same Blu-Ray drive I burned with. Regular dvd drive does not see the disc. I am going to try a Blu-Ray only external drive - will update.

Question 3

Can someone recommend a drive that successfully burns the bdxl m-discs? my pioneer bdr-2209 is only successful about 2 out of 5 discs.

Accepted Answer

Yes. I've had excellent results on Mac OS X with the LG HL-DT-ST BD-RE  WH14NS40. I bought mine in an external USB3 enclosure from OWC, but I'm quite sure that any you find here would work just as well. I've had a 100% success rate with the 25GB discs.

Question 4

Sorry for furthur question. Is the 25gb model with branded surface also made from Taiwan?Thanks a lot.

Accepted Answer

Hi Shih,Yes, Verbatim M-Disc BD-R 25GB 4X with Branded Surface - 25 Pack Spindle 98909 is made in Taiwan.If you have any other question please contact our Tech Support line: 800-538-8589. Thank you for your interest in our products.

ASIN	B011PZALWA
Best Sellers Rank	#2 in Blank BD-R Discs
Brand	Verbatim
Built-In Media	Verbatim BD-R optical disc(25)
Color	Blue
Customer Reviews	4.4 out of 5 stars 1,192 Reviews
Format	Blu-ray
Global Trade Identification Number	00023942989097
Item Weight	451 g
Manufacturer	Verbatim
Media Speed	4x
Memory Storage Capacity	25 GB
Mfr Part Number	98909
Model Number	98909
Recording Capacity	2.8 hours
UPC	023942989097
Unit Count	1 Count
Warranty Description	10 years warranty
Write Speed	4x

Verbatim M DISC BD-R 25GB 4X Archival Blu-ray Recordable Discs, 25 Pack

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